Powerful cleaning results. Clean, dry and safe floors in minutes. Fast and flexible charging. User friendly features. Clean for longer. NX1K Lithium phosphate battery, fast charge, long life, flexible power, 10x longer lasting than lead batteries and up to 4000 charge cycles. A 5-year battery warranty provides complete peace of mind for you and your cleaning fleet. Investing in Lithium, compared to routinely replacing lead batteries and associated service costs, provides a positive return on investment across the NX1K range, therefor saving you money. Equipped with Nu-Assist APP, training and support at your fingertips.